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RESEARCH PAPERS

Aerodynamic and Aeroelastic Characteristics of Oscillating Loaded Cascades at Low Mach Number—Part I: Pressure Distribution, Forces, and Moments

[+] Author and Article Information
H. Atassi, T. J. Akai

Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Ind. 46556

J. Eng. Power 102(2), 344-351 (Apr 01, 1980) (8 pages) doi:10.1115/1.3230260 History: Received December 18, 1978; Online September 28, 2009

Abstract

A complete theory is developed in Part I of these two papers for the analysis of oscillating airfoils in cascade in uniform incompressible flows. The theory fully accounts for the geometry of the airfoils and cascade parameters. It is shown that the strong mean velocity gradient near the leading edges of the airfoils significantly affects the unsteady pressure, forces and moments acting upon the airfoils. In Part II the aeroelastic characteristics of a loaded cascade are investigated for one and two degrees of freedom oscillations.

Copyright © 1980 by ASME
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